Home / 514,986.40-710,689.77-285,553.36

Finding the Fourth Proportional to 514,986.40, 710,689.77 and 285,553.36

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Solution

The fourth proportional to 514,986.40, 710,689.77 and 285,553.36 is: 394,068.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,986.40 : 710,689.77 = 285,553.36 : x
  2. Step 2: Convert to fraction form
    514,986.40/710,689.77 = 285,553.36/x
  3. Step 3: Cross multiply
    514,986.40x = 710,689.77 × 285,553.36
  4. Step 4: Simplify right side
    514,986.40x = 202,939,851,741.13
  5. Step 5: Solve for x
    x = 202,939,851,741.13/514,986.40
  6. Step 6: Final answer
    x = 394,068.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.